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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> physics-grad <physics-grad-bounces+han.1929=osu.edu@lists.osu.edu> on behalf of Steward, Charnae <steward.148@osu.edu><br>
<b>Sent:</b> Thursday, April 6, 2023 12:51:31 PM<br>
<b>To:</b> Steward, Charnae <steward.148@osu.edu>; 'physics-all@lists.osu.edu' <Physics-all@lists.osu.edu><br>
<b>Subject:</b> RE: Happening Now! Colloquium- Eric Borguet (Temple University)-Structure and ultrafast dynamics at aqueous-oxide interfaces
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<p class="x_MsoNormal">Colloquium will start at 1:15pm but the reception is available.
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<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Times New Roman",serif">-Thank you!</span></p>
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<p class="x_MsoNormal"><b><span style="font-size:12.0pt; font-family:"Times New Roman",serif; color:#C00000">Charnae Steward, M.Ed.</span></b></p>
<p class="x_MsoNormal"><span style="font-family:"Times New Roman",serif">Undergraduate Office & Events Coordinator
</span></p>
<p class="x_MsoNormal"><span style="font-family:"Times New Roman",serif; color:#C00000">College of Arts and Sciences</span></p>
<p class="x_MsoNormal"><i><span style="font-family:"Times New Roman",serif">Department of Physics</span></i><span style="font-family:"Times New Roman",serif">,
<i>Physics Research Building</i></span></p>
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<p class="x_MsoNormal"><span style="font-family:"Times New Roman",serif; color:#C00000"><a href="mailto:Steward.148@osu.edu"><span style="color:#C00000">Steward.148@osu.edu</span></a> /
</span><span style="font-size:9.0pt; font-family:"Arial",sans-serif; color:#C00000; background:white"><a href="https://physics.osu.edu/"><span style="color:#C00000">https://physics.osu.edu/</span></a></span><span style="font-family:"Times New Roman",serif; color:#C00000"></span></p>
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<p class="x_MsoNormal"><b>From:</b> physics-staff <physics-staff-bounces@lists.osu.edu>
<b>On Behalf Of </b>Steward, Charnae<br>
<b>Sent:</b> Thursday, April 6, 2023 12:50 PM<br>
<b>To:</b> 'physics-all@lists.osu.edu' <Physics-all@lists.osu.edu><br>
<b>Subject:</b> Happening Now! Colloquium- Eric Borguet (Temple University)-Structure and ultrafast dynamics at aqueous-oxide interfaces
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<p class="x_MsoNormal">Happening Now!</p>
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<b><span style="font-size:22.5pt; font-family:proximanova; color:#666666">Structure and ultrafast dynamics at aqueous-oxide interfaces </span></b></p>
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<p style="margin-right:0in; margin-bottom:12.0pt; margin-left:0in; background:white">
<span style="font-size:12.0pt; font-family:proximanova; color:#555555">Dr. Eric Borguet</span></p>
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<span style="font-size:12.0pt; font-family:proximanova; color:#555555">Temple University</span></p>
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<em><span style="font-size:12.0pt; font-family:proximanova; color:#555555; background:yellow">Location: 4138 Physics Research Building</span></em><em><span style="font-size:12.0pt; font-family:proximanova; color:#555555"> </span></em><span style="font-size:12.0pt; font-family:proximanova; color:#555555"></span></p>
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<span style="font-size:12.0pt; font-family:proximanova; color:#555555">Faculty Host: Louis DiMauro & Sherwin Singer </span></p>
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<span style="font-size:12.0pt; font-family:proximanova; color:#555555">Reception starts at 12:45pm</span></p>
<p class="x_MsoNormal" style="margin-bottom:12.0pt; background:white"><b><span style="font-size:12.0pt; font-family:proximanova; color:#555555">Abstract: </span></b><span style="font-size:12.0pt; font-family:proximanova; color:#555555">Interfacial water structure
is key to diverse chemical and physical processes, including many of environmental and geochemical relevance. It can be probed by vibrational sum-frequency generation (vSFG) spectroscopy as well as ultrafast time-resolved vSFG. However, a more complete microscopic
understanding requires additional techniques such as molecular dynamics simulations. Our experiments show that in the absence of surface charge (pH 2), water at silica surfaces exhibits significantly slower OH stretch vibrational relaxation (~600 fs) compared
to bulk water. However, at charged silica surfaces (e.g., pH 6), bulk-like fast dynamics (~200 fs) are observed at low ionic strength. This decelerates to ~600 fs with the addition of NaCl. In parallel, vSFG results demonstrated that silica interfacial
water structure is most sensitive to ions at pH=6-8, correlating with the known salt and pH dependence of silica surface reactivity. Consequently, it is unclear whether the observed slowing of the vibrational dynamics is due to the reduction in the Debye
length, or because of changes in the local hydrogen bonding environment caused by the electrolyte and how this might depend on the identity of the ions or the solid surface. The combination of molecular dynamics simulations with spectroscopic and time-resolved
vSFG experiments on aqueous Al</span><sub><span style="font-size:9.0pt; font-family:proximanova; color:#555555">2</span></sub><span style="font-size:12.0pt; font-family:proximanova; color:#555555">O</span><sub><span style="font-size:9.0pt; font-family:proximanova; color:#555555">3</span></sub><span style="font-size:12.0pt; font-family:proximanova; color:#555555"> interfaces,
along with the use of a molecular probe SCN</span><sup><span style="font-size:9.0pt; font-family:proximanova; color:#555555">-</span></sup><span style="font-size:12.0pt; font-family:proximanova; color:#555555">, sheds light on the ongoing debate on the role
of ions in interfacial water structure and whether the observed behavior is specific to silica/water interfaces or can be generalized to other aqueous interfaces. </span></p>
<p class="x_MsoNormal" style="background:white"><span style="font-size:12.0pt; font-family:proximanova; color:#666666"><img border="0" width="400" height="215" id="x_Picture_x0020_2" src="cid:image003.png@01D96886.81BF6210" alt="Structure and ultrafast dynamics at aqueous-oxide interfaces" style="width:4.1666in; height:2.2395in"></span><span style="font-size:12.0pt; font-family:proximanova; color:#666666"></span></p>
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<strong><span style="font-size:12.0pt; font-family:proximanova; color:#555555">Bio: </span></strong><span style="font-size:12.0pt; font-family:proximanova; color:#555555">Dr. Eric Borguet is the Hazel Tomlinson Professor of Chemistry at Temple University in
Philadelphia, PA. He was born in Dublin, Ireland, where he spent his formative years. He attended college in France at the Université de Paris-Sud (XI-Orsay) where he studied chemistry and physics. He traveled to Philadelphia, Pennsylvania in the USA and obtained
his Ph.D. in Physical Chemistry at the University of Pennsylvania in 1993, under the mentorship of Professor Hai-Lung Dai where he investigated adsorption and intermolecular interaction on stepped metal surfaces. His post-doctoral training was completed at
Columbia University in the group of Professor Kenneth Eisenthal using nonlinear optics to investigate spectroscopy and ultrafast dynamics at liquid interfaces.</span></p>
<p style="margin-right:0in; margin-bottom:12.0pt; margin-left:0in; background:white; box-sizing:border-box">
<span style="font-size:12.0pt; font-family:proximanova; color:#555555">Chemical and physical processes at surfaces and interfaces are the principal focus of his ongoing research program at Temple University. His research activities have resulted in over 150
peer-reviewed publications, in excess of 300 invited talks and more than 270 contributed presentations.</span></p>
<p style="margin-right:0in; margin-bottom:12.0pt; margin-left:0in; background:white; box-sizing:border-box">
<span style="font-size:12.0pt; font-family:proximanova; color:#555555">Eric has mentored 30 graduate students, 21 of whom earned a Ph.D. and went on to post-doctoral fellowships, as well as industrial and academic careers. He has advised over 100 undergraduate
researchers, many of whom have continued to graduate studies. His group has welcomed 16 visiting graduate students, as well as 5 sabbatical visiting scholars. He has supervised the training of 19 post-doctoral fellows.</span></p>
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<span style="font-size:12.0pt; font-family:proximanova; color:#555555"><a href="https://urldefense.com/v3/__https:/scholar.google.com/citations?user=bdTuVVMAAAAJ&hl=en__;!!KGKeukY!3MkmHmYXv8FUqDmwLpdYnDueelJ491Q-4F3oECmp2ySEwpDRARpSN3eNfb6Q1DcUACkd2dvdvG-jUdtwvmwSfCBaSw$"><span style="color:#BA0C2F">Google
Scholar Publications</span></a></span></p>
<p style="margin-right:0in; margin-bottom:12.0pt; margin-left:0in; background:white; box-sizing:border-box">
<span style="font-size:12.0pt; font-family:proximanova; color:#555555">Current Research themes:<br>
Nonlinear Optics and Ultrafast Processes at Interfaces<br>
Development of Ultrafast Optical Parametric Amplifiers<br>
Electrical conductivity in Single Molecules<br>
Nanomaterial Synthesis and Characterization<br>
Nanoscale Dynamics at Interfaces<br>
Surface Mediated Sensors<br>
Plasmonics</span></p>
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<span style="font-size:12.0pt; font-family:proximanova; color:#555555">Honors and Awards:</span></p>
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<span style="font-size:12.0pt; font-family:proximanova; color:#555555">Inaugural Hazel Tomlinson Professor of Chemistry 2023-present<br>
Morino Lectureship, Japan 2019-2020<br>
Honorary Visiting Professor, Indian Institute of Technology-Bombay, India 2019-2020<br>
Fullbright Specialist Roster, 2018-2023<br>
Visiting Professor, Université Paul Sabatier, Toulouse, France 2013<br>
Temple CST Dean’s Distinguished Excellence in Mentoring Award, 2012<br>
Visiting Professor, Hokkaido University, Japan 2012<br>
American Physical Society Fellow, 2010<br>
American Chemical Society, Philadelphia Section Award, 2009<br>
U.S. Young Observer to 2007 IUPAC General Assembly and Congress, 2007<br>
Visiting Fellow, Japan Society for the Promotion of Science, 2007-2008 Visiting Professor, Université de Bordeaux, France 1999 NSF- CAREER
Award, 1998-2002</span></p>
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<span style="font-size:12.0pt; font-family:proximanova; color:#555555"><a href="https://urldefense.com/v3/__https:/sites.temple.edu/borguet/files/2023/02/BORGUET_CV_01-29-2023.pdf__;!!KGKeukY!3MkmHmYXv8FUqDmwLpdYnDueelJ491Q-4F3oECmp2ySEwpDRARpSN3eNfb6Q1DcUACkd2dvdvG-jUdtwvmyPxhV9nQ$"><span style="color:#BA0C2F">Dr.
Eric Borguet’s CV</span></a></span></p>
<p style="margin:0in; background:white; box-sizing:border-box"><span style="font-size:12.0pt; font-family:proximanova; color:#555555">Department of Chemistry<br>
130 Beury Hall<br>
Temple University<br>
1901 N. 13th Street<br>
Philadelphia, PA 19122<br>
Office: 1 (215) 204-9696, Room 252<br>
<a href="mailto:eborguet@temple.edu"><span style="color:#BA0C2F">eborguet@temple.ed</span></a></span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Times New Roman",serif">Best,</span></p>
<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Times New Roman",serif"> </span></p>
<p class="x_MsoNormal"><span style="font-size:9.0pt; font-family:"Arial",sans-serif; color:#212325"><img border="0" width="273" height="60" id="x_Picture_x0020_3" src="cid:image002.png@01D96886.81BF6210" alt="The Ohio State University" style="width:2.8437in; height:.625in"></span><span style="font-size:12.0pt; font-family:"Times New Roman",serif"></span></p>
<p class="x_MsoNormal"><b><span style="font-size:12.0pt; font-family:"Times New Roman",serif; color:#C00000">Charnae Steward, M.Ed.</span></b></p>
<p class="x_MsoNormal"><span style="font-family:"Times New Roman",serif">Undergraduate Office & Events Coordinator
</span></p>
<p class="x_MsoNormal"><span style="font-family:"Times New Roman",serif; color:#C00000">College of Arts and Sciences</span></p>
<p class="x_MsoNormal"><i><span style="font-family:"Times New Roman",serif">Department of Physics</span></i><span style="font-family:"Times New Roman",serif">,
<i>Physics Research Building</i></span></p>
<p class="x_MsoNormal"><span style="font-family:"Times New Roman",serif">191 W. Woodruff Ave</span></p>
<p class="x_MsoNormal"><span style="font-family:"Times New Roman",serif">Columbus, Ohio 43210</span></p>
<p class="x_MsoNormal"><span style="font-family:"Times New Roman",serif">Office: 614-247-9513</span></p>
<p class="x_MsoNormal"><span style="font-family:"Times New Roman",serif; color:#C00000"><a href="mailto:Steward.148@osu.edu"><span style="color:#C00000">Steward.148@osu.edu</span></a> /
</span><span style="font-size:9.0pt; font-family:"Arial",sans-serif; color:#C00000; background:white"><a href="https://physics.osu.edu/"><span style="color:#C00000">https://physics.osu.edu/</span></a></span><span style="font-family:"Times New Roman",serif; color:#C00000"></span></p>
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